Use cblas implementation instead of restricting openblas
--- a/cmake/Modules/FindAubio.cmake
+++ b/cmake/Modules/FindAubio.cmake
@@ -4,17 +4,9 @@ include(LibFetchMacros)
 set(Aubio_GIT_VERSION "master")
 
 #set(BLA_VENDOR OpenBLAS)
-set(BLA_PKGCONFIG_BLAS openblas)
+set(BLA_PKGCONFIG_BLAS cblas)
 find_package(BLAS REQUIRED)
 
-# also Accelerate.framework for mac
-
-if (NOT APPLE AND NOT BLAS_LIBRARIES MATCHES "openblas")
-	message(FATAL_ERROR "BLAS vendor is not OpenBLAS. Found: ${BLAS_LIBRARIES}")
-elseif (APPLE AND NOT BLAS_LIBRARIES MATCHES "Accelerate.framework")
-	message(FATAL_ERROR "BLAS vendor is not Accelerate.framework. Found: ${BLAS_LIBRARIES}")
-endif()
-
 if(SELF_BUILT_AUBIO STREQUAL "ALWAYS")
 	message(STATUS "aubio forced to build from source")
 	libfetch_git_pkg(Aubio